We don't have to explain who The Warblers are to the millions of you who have been religiously DVRing Glee since this Prime Time a cappella (well, actually sometimes accompanied) phenomenon hit the airwaves a couple of years ago. McKinley High's charismatic, angst-ridden New Directions ensemble has to take on any number of challenges in their quest to (a) survive as a group against the anti-glee club forces at McKinley, and (b) win the regionals. The Warblers, from hoity-toity Dalton Academy are their nemesis, but this all-male, matching Ivy League blazered group are no slouches. The New Directions take them out at the regionals, but it's clear that rematches will be happening, and this 13-song Warblers CD shows just what the ND are up against! Some favorites are three with leads by Popular Glee star Darren Criss, Katy Perry's "Teenage Dream," Train's long-running hit "Hey Soul Sister" and Destiny's Child's "Bills, Bills, Bills;" Robin Thicke's "When I Get You Alone," Maroon 5's "Misery," a delicate cover of the Beatles' "Blackbird," a powerful take on Pink's "Raise Your Glass," Keane's poignant (accompanied) "Somewhere Only We Know," and tight vocal percussion and sweet backup harmonies on Barbra Streisand's "What Kind of Fool" and Rod Stewart's Disco hit "Do Ya Think I'm Sexy." But you don't have to be into Glee to recognize and dig a great a cappella CD-The Warblers have top-drawer arrangers and use the vocal chops of the Beelezbubs to absolutely nail every one of these songs. Just listen to songs like "Hey Soul Sister" and "Teenage Dream," and see why we love this CD, and are thrilled about what Glee is doing for a cappella!